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gb_control_get_version() is not used outside of the file and must be
marked as static. Following sparse warnings are reported today:
greybus/control.c:20:5: warning: symbol 'gb_control_get_version' was not declared. Should it be static?
Fix it by marking gb_control_get_version() 'static'.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
greybus/audio_apbridgea.c:13:5: warning: symbol 'gb_audio_apbridgea_set_config' was not declared. Should it be static?
greybus/audio_apbridgea.c:30:5: warning: symbol 'gb_audio_apbridgea_register_cport' was not declared. Should it be static?
greybus/audio_apbridgea.c:44:5: warning: symbol 'gb_audio_apbridgea_unregister_cport' was not declared. Should it be static?
greybus/audio_apbridgea.c:58:5: warning: symbol 'gb_audio_apbridgea_set_tx_data_size' was not declared. Should it be static?
greybus/audio_apbridgea.c:72:5: warning: symbol 'gb_audio_apbridgea_get_tx_delay' was not declared. Should it be static?
greybus/audio_apbridgea.c:80:5: warning: symbol 'gb_audio_apbridgea_start_tx' was not declared. Should it be static?
greybus/audio_apbridgea.c:94:5: warning: symbol 'gb_audio_apbridgea_stop_tx' was not declared. Should it be static?
greybus/audio_apbridgea.c:106:5: warning: symbol 'gb_audio_apbridgea_set_rx_data_size' was not declared. Should it be static?
greybus/audio_apbridgea.c:120:5: warning: symbol 'gb_audio_apbridgea_get_rx_delay' was not declared. Should it be static?
greybus/audio_apbridgea.c:128:5: warning: symbol 'gb_audio_apbridgea_start_rx' was not declared. Should it be static?
greybus/audio_apbridgea.c:141:5: warning: symbol 'gb_audio_apbridgea_stop_rx' was not declared. Should it be static?
greybus/audio_gb.c:14:5: warning: symbol 'gb_audio_gb_get_topology' was not declared. Should it be static?
greybus/audio_gb.c:48:5: warning: symbol 'gb_audio_gb_get_control' was not declared. Should it be static?
greybus/audio_gb.c:70:5: warning: symbol 'gb_audio_gb_set_control' was not declared. Should it be static?
greybus/audio_gb.c:85:5: warning: symbol 'gb_audio_gb_enable_widget' was not declared. Should it be static?
greybus/audio_gb.c:97:5: warning: symbol 'gb_audio_gb_disable_widget' was not declared. Should it be static?
greybus/audio_gb.c:109:5: warning: symbol 'gb_audio_gb_get_pcm' was not declared. Should it be static?
greybus/audio_gb.c:133:5: warning: symbol 'gb_audio_gb_set_pcm' was not declared. Should it be static?
greybus/audio_gb.c:150:5: warning: symbol 'gb_audio_gb_set_tx_data_size' was not declared. Should it be static?
greybus/audio_gb.c:163:5: warning: symbol 'gb_audio_gb_get_tx_delay' was not declared. Should it be static?
greybus/audio_gb.c:183:5: warning: symbol 'gb_audio_gb_activate_tx' was not declared. Should it be static?
greybus/audio_gb.c:195:5: warning: symbol 'gb_audio_gb_deactivate_tx' was not declared. Should it be static?
greybus/audio_gb.c:207:5: warning: symbol 'gb_audio_gb_set_rx_data_size' was not declared. Should it be static?
greybus/audio_gb.c:220:5: warning: symbol 'gb_audio_gb_get_rx_delay' was not declared. Should it be static?
greybus/audio_gb.c:240:5: warning: symbol 'gb_audio_gb_activate_rx' was not declared. Should it be static?
greybus/audio_gb.c:252:5: warning: symbol 'gb_audio_gb_deactivate_rx' was not declared. Should it be static?
Fix them by including the header that declares the exported routines.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Every time we hotplug an audio module, we get a new audio module id. We
should recycle them instead of just constantly incrementing the number
so we don't see things like:
[178016.832580] Created audio module #6124
in the kernel logs.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Its unrealistic to expect 50 loopback devices,
and the mask parameter can hold up to "int" anyways
so decrease to max number of devices to sane value.
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Convert the legacy firmware protocol driver to a bundle driver.
This also fixes a potential crash should a (malicious) module have sent
an early request before the private data had been initialised.
Note that the firmware protocol needs to support the version request
indefinitely since it has been burnt into ROM.
In order to avoid having to update current module-loading scripts, keep
this driver internal to greybus core at least until modalias support is
added.
Note that there is no MODULE_DEVICE_TABLE defined for firmware as we
cannot have two greybus tables in one module on ancient 3.10 kernels and
that the legacy driver is currently also internal to core. This needs be
added once the driver can be built as a module.
Testing Done: Tested on DB3.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Remove the unimplemented display, sensor, and svc classes from the
device-id table.
As Viresh noted the SVC protocol is special and having an SVC class
doesn't really make sense at all. Either way, the SVC protocol is
already implemented by core.
Testing Done: Compiled
Reported-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
SVC WAKE_OUT loop is estimated 400ms during which wake_detect line
is pulled low for AP detection. On AP side we have 500ms delay
between checks. To avoid timing issues, reduce delay between
checks and raise total # of checks so that overall time for sequence
is the same.
Testing Done:
- Used for DB3.5/EVT1.5 hardware during bringup
- Regression tested on DB3.1+ES2, DB3.1+ES3
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Reviewed-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Tested-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
After SVC generates WAKE_OUT (pulling wake-detect pin low) and APB is
brought out of reset, we need to assert wake-detect again to complete
SVC WAKE_OUT logic.
Testing Done:
- Used for DB3.5/EVT1.5 hardware during bringup
- Regression tested on DB3.1+ES2, DB3.1+ES3
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Reviewed-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Tested-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Move SVC deassert reset to after wake-detect pin has been pulled
low in probe. Otherwise, SVC may trigger WAKE_OUT based on a
default high signal.
Testing Done:
- Used for DB3.5/EVT1.5 hardware during bringup
- Regression tested on DB3.1+ES2, DB3.1+ES3
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Reviewed-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Tested-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
During DB3.5 bringup, it was noted that wake_detect signal was not
properly generating SVC edge IRQ. To ensure signal goes from low
to high correctly, let's bring signal low (regardless of default
pin state).
Testing Done:
- Used for DB3.5/EVT1.5 hardware during bringup
- Regression tested on DB3.1+ES2, DB3.1+ES3
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Reviewed-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Tested-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Make sure to tear down the svc and flush any on-going hotplug processing
before removing the remaining interfaces.
This fixes crashes due to host-device removal racing with svc
hotplug/unplug processing (e.g. at "UniPro restart").
Testing Done:
Verified that this fixes crashes reproducible on SDB when unloading the
host-device driver module while generating hotplug/unplug events.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
There should be a single class macro for Audio and two protocol macros.
Rename class with value 0x12 as GREYBUS_CLASS_AUDIO and remove the other
unused class GREYBUS_CLASS_AUDIO_DATA.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Convert the legacy audio management and data protocol drivers to a
bundle driver.
The Audio bundle driver can support a single management and any number
of data cports, and so we expect multiple data cports to be present for
the bundle during initialization.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
We aren't freeing the codec, that we allocated before failing to probe
the connection. Free it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
We aren't freeing the codec, that we allocated before failing to probe
the connection. Free it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
When gb_protocol_get() fails in legacy_connection_create(), we end up
bailing-out before assigning lc->connection and lc->protocol. Calling
legacy_connection_destroy() in that case results in a null pointer
dereference.
Check if lc->connection is not null before freeing it.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Its useful to get a CSV output on stdout for test frameworks to read
and parse the results. However, a csv file is not always needed.
Add the -z option to create/append a csv file only when the user
asks for it.
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Sometimes you want to disable the SVC watchdog without having to patch
your kernel, so provide a sysfs file to do this. This can let us do
power measurements, and let the firmware developers not go crazy
worrying that the kernel is going to reset their chips with no notice.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
The camera driver currently does not build against anything other than
the msm kernel, due to cross-dependancies, so enable that here so that
we can build against other kernels without failing the build.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Tested-by: Marti Bolivar <mbolivar@leaflabs.com>
Acked-by: Laurent Pinchart <laurent.pinchart@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Sometimes the ping response comes back _right_ after we timed out, as
the svc got its act together and squeaked out the ack, yet we miss it
and reset the whole bus. Double the delay to hopefully give the svc a
little more of a chance to fix itself. Odds are, it's still in trouble,
but we can just hold off resetting it for a bit more...
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
As part of driver remove (cleanup) function, disable the clock for both
SVC, APB1 & APB2.
Testing Done:
Tested on EVT1 platform with Connect=>disconnect=>connect
iteration, almost close to 100 iterations have passed (demo branch).
And also tested with kernel-only build.
Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Unipro network speed was increased at camera initialization time and
never slowed down.
This unnecessary drains power during the entire time camera module is
plugged in.
Increasing/decreasing unipro link speed before issuing stream
configuration request to camera module prevents this from happening.
Signed-off-by: Jacopo Mondi <jacopo.mondi@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
When the watchdog is not created properly, we need to propagate the
error for this and not just return success.
Reported-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Now that we have a svc ping command, let's add a watchdog to call it
every so often (1 second at the moment.) If it finds something went
wrong, post a stern message to the kernel log and call:
start unipro_reset
to reset the whole greybus hardware subsystem.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This change adds missing planar and semiplanar
formats from gb specification.
Mbus to Gb format map:
V4L2_MBUS_FMT_NV12_1x8 -> 0x12
V4L2_MBUS_FMT_NV21_1x8 -> 0x13
V4L2_MBUS_FMT_YV12_1x8 -> 0x16
V4L2_MBUS_FMT_YU12_1x8 -> 0x17
Change depends on:
"media: add new mediabus format enums for ara camera"
Signed-off-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
ES2 chips doesn't have efuses for storing module's vendor_id and
product_id and so we have hacked bootrom earlier using firmware
protocol, so that VID/PID can be received for fetching firmware
packages.
Another requirement is to expose them to sysfs, so that modules can be
identified properly.
That can be easily solved by updating interface's VID/PID, when fetched
using firmware protocol and later reusing them while the module switches
its identity from bootrom to firmware.
Do that only if the module is ES2 and the VID/PID sent during hotplug
are both 0.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Horrid hack, but a start at making it easier for people to see what is
currently connected without having to deal with poking around in sysfs
directly.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Originally, driver->name was not poluated from GB and thus
manually set from audio_codec driver as a hack.
This is no more required.
Another patch already removes that hack.
Now, with new driver->name as "legacy.<id-bundle.interface>"
codec is registered with different name.
So, during DAI link registration as well it needs modification.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Abort if the AP_READY request fails.
Also update the comment suggesting that this operation was a temporary
one.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Convert the legacy HID protocol driver to a bundle driver.
This also fixes a potential crash should a (malicious) module have sent
an early request before the private data had been initialised.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Separate success and error paths more clearly.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Set the connection request handler at creation rather than when enabling
the connection.
This is possible now that connections are created by the drivers that
use them rather than by core at manifest parsing time.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Look up legacy protocol at connection create instead of at init.
Note that we can now look up the protocol before even creating the
actual connection. This is needed to be able to set a connection request
handler when creating the connection rather than when enabling it.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Remove legacy protocol-id field that is only used by the legacy-protocol
driver from the connection structure.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Add initialized flag and use instead of the connection protocol pointer
to determine when the legacy connection has been initialised.
This is a step in moving legacy connection binding to
connection-creation time.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Add wrapper structure for legacy connections and add helpers to create
and destroy legacy connections.
This is a step in removing legacy connection fields from the core
structures.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Return an ERR_PTR on errors when creating connections.
This allows driver probe to fail with a more informative error message
as not all connection creation errors are due to memory exhaustion.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Drop the _dynamic suffix from the exported interface that drivers use to
create connections.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Simplify the exported generic interface for creating dynamic
connections.
Since all driver connections will have a bundle we can drop the
redundant interface parameter.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
The protocol-id parameter is only used by the legacy driver so remove
it from the generic interface and move it to the legacy driver until it
can be removed completely.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Add dedicated helper to create control connections.
This will allow us to simplify the generic (dynamic) interface.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Now that connection creation has been separated from interface
initialisation, we should explicitly check for duplicate CPort
descriptors when parsing the manifest.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Defer connection creation to bundle driver probe instead of creating
them when initialising the interface and parsing the manifest.
Store copies of the CPorts descriptors in the bundle for the drivers to
use, and update the legacy driver.
This is needed for drivers that need more control over host-device
resource management, for example, when a protocol needs to use a
dedicated host CPort for traffic offloading (e.g. camera data).
This also avoids allocating host CPorts for bundles that are not bound
to a driver or for remote CPorts that a driver does not need.
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
When bundles are added and then removed, we have a race where we go to
read the sysfs file, but it is now for a different bundle than the
uevent was originally for. So add the bundle class to the uevent so we
"know" what the correct bundle class was.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This implements the SVC "ping" command. It's tiny and simple, but we
need something like this in order for us to "know" if all is working
well.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
People are getting confused as to what the firmware file name is for
their module, so log it to make it easier to find modules with "blank"
vid/pid values and let people know what to name their firmware files.
Because we are now logging this, turn the debug message after the
firmware request into an error message if something fails.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Add a new input device associated with the SVC to handle key events.
This new events are transfer over a new greybus svc operation which is
unidirectional.
It was selected the KEY_A for representing the KEY_ARA_BUTTON key code.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
